These changes restore a more-correct version of the behavior that was
disabled with #3014. The original implementation of this behavior was
done in the SDKs, which do not have access to the complete inputs for a
resource (in particular, default values filled in by the provider during
`Check` are not exposed to the SDK). This lack of information meant that
the resolved output values could disagree with the typings present in
a provider SDK. Exacerbating this problem was the fact that unknown
values were dropped entirely, causing `undefined` values to appear in
unexpected places.
By doing this in the engine and allowing unknown values to be
represented in a first-class manner in the SDK, we can attack both of
these issues.
Although this behavior is not _strictly_ consistent with respect to the
resource model--in an update, a resource's output properties will come
from its provider and may differ from its input properties--this
behavior was present in the product for a fairly long time without
significant issues. In the future, we may be able to improve the
accuracy of resource outputs during a preview by allowing the provider
to dry-run CRUD operations and return partially-known values where
possible.
These changes also introduce new APIs in the Node and Python SDKs
that work with unknown values in a first-class fashion:
- A new parameter to the `apply` function that indicates that the
callback should be run even if the result of the apply contains
unknown values
- `containsUnknowns` and `isUnknown`, which return true if a value
either contains nested unknown values or is exactly an unknown value
- The `Unknown` type, which represents unknown values
The primary use case for these APIs is to allow nested, properties with
known values to be accessed via the lifted property accessor even when
the containing property is not fully know. A common example of this
pattern is the `metadata.name` property of a Kubernetes `Namespace`
object: while other properties of the `metadata` bag may be unknown,
`name` is often known. These APIs allow `ns.metadata.name` to return a
known value in this case.
In order to avoid exposing downlevel SDKs to unknown values--a change
which could break user code by exposing it to unexpected values--a
language SDK must indicate whether or not it supports first-class
unknown values as part of each `RegisterResourceRequest`.
These changes also allow us to avoid breaking user code with the new
behavior introduced by the prior commit.
Fixes#3190.
Adds the ability to provide `transformations` to modify the properties and resource options that will be used for any child resource of a component or stack.
This offers an "escape hatch" to modify the behaviour of a component by peeking behind it's abstraction. For example, it can be used to add a resource option (`additionalSecretOutputs`, `aliases`, `protect`, etc.) to a specific known child of a component, or to modify some input property to a child resource if the component does not (yet) expose the ability to control that input directly. It could also be used for more interesting scenarios - such as:
1. Automatically applying tags to all resources that support them in a stack (or component)
2. Injecting real dependencies between stringly-referenced resources in a Helm Chart
3. Injecting explicit names using a preferred naming convention across all resources in a stack
4. Injecting `import` onto all resources by doing a lookup into a name=>id mapping
Because this feature makes it possible to peek behind a component abstraction, it must be used with care in cases where the component is versioned independently of the use of transformations. Also, this can result in "spooky action at a distance", so should be used judiciously. That said - this can be used as an escape hatch to unblock a wide variety of common use cases without waiting on changes to be made in a component implementation.
Each transformation is passed the `resource`, `name`, `type`, `props` and `opts` that are passed into the `Resource` constructor for any resource descended from the resource that has the transformation applied. The transformation callback can optionally return alternate versions of the `props` and `opts` to be used in place of the original values provided to the resource constructor.
Fixes#2068.
* Fix some tracing issues.
- Add endpoints for `startUpdate` and `postEngineEventsBatch` so that
spans for these invocations have proper names
- Inject a tracing span when walking a plan so that resource operations
are properly parented
- When handling gRPC calls, inject a tracing span into the call's
metadata if no span is already present so that resource monitor and
engine spans are properly parented
- Do not trace client gRPC invocations of the empty method so that these
calls (which are used to determine server availability) do not muddy
the trace. Note that I tried parenting these spans appropriately, but
doing so broke the trace entirely.
With these changes, the only unparented span in a typical Pulumi
invocation is a single call to `getUser`. This span is unparented
because that call does not have a context available. Plumbing a context
into that particular call is surprisingly tricky, as it is often called
by other context-less functions.
* Make tracing support more flexible.
- Add support for writing trace data to a local file using Appdash
- Add support for viewing Appdash traces via the CLI
We had been using `pandoc` to convert our README.md into a README.rst
for use with `setup.py` and the python package ecosystem. It turns out
that we can use markdown if we set a content type. So let's do that
and make things a little simpler.
While I was in the area, I made the encoding of UTF-8 explicit when
opening README.md.
- Do not use a non-zero-to-zero transition in the number of outstanding
RPCs to determine the completion of a Python program until after the
synchronous piece of the program has finished running is complete
- Instead of using a future to indicate that either a) a zero-to-one
transition in the number of outstanding RPCs has occurred, or b) an
unhandled exception has occurred, a) observe the transition itself,
and b) use an optional exception field to track the presence or
absence of an exception.
Fixes#3162.
Change is 3.6.2 of typescript have caused their code generation to no
longer emit a call to `this` inside an arrow function, so this test is
no longer causing an error to be thrown.
For now, just accept the baseline, but I'll file an issue so we can
actually get a real failing test here.
We intend to replace PULUMI_TEST_MODE with better testing support
that doesn't suffer from all the pitfalls of our current approach.
Unfortunately, we don't yet have complete guidance or validation
that the new approaches will work for all existing end users. So,
until we do, we'll take a lighter touch approach here, and simply
not encourage new usage of PULUMI_TEST_MODE.
Issue #3045 will remain open to track a mroe permanent fix.
In #3071 we made change to the built in provider for `StackReference`
to return additional data about the names of outputs which were
secrets. The SDKs uses this information to decide if it should mark a
stack output as secret when returning it's value from `getOutput`.
When using an older CLI which does not report this data, we hit an
error:
```
TypeError: Cannot read property 'outputs' of undefined
```
This was caused by a refactoring error where we extracted a private
helper out of the StackReference class, but neglected to change one
instance of `this` to `sr`. While we do have tests that exercise this
feature, we would only see this bug when using an older CLI, and we
don't have automated tests here that use the neweset `@pulumi/pulumi`
with an older `pulumi` CLI
With these changes, a user may explicitly set `deleteBeforeReplace` to
`false` in order to disable DBR behavior for a particular resource. This
is the SDK + CLI escape hatch for cases where the changes in
https://github.com/pulumi/pulumi-terraform/pull/465 cause undesirable
behavior.
When using StackReference, if the stack you reference contains any
secret outputs, we have to mark the entire `outputs` member as a
secret output. This is because we only track secretness on a per
`Output<T>` basis.
For `getSecret` and friends, however, we know the name of the output
you are looking up and we can be smarter about if the returned
`Output<T>` should be treated as a secret or not.
This change augments the provider for StackReference such that it also
returns a list of top level stack output names who's values contain
secrets. In the language SDKs, we use this information, when present,
to decide if we should return an `Output<T>` that is marked as a
secret or not. Since the SDK and CLI are independent components, care
is taken to ensure that when the CLI does not return this information,
we behave as we did before (i.e. if any output is a secret, we treat
every output as a secret).
Fixes#2744
_sync_await was not reentrant with respect to _run_once: the latter
captures the length of the ready list before it iterates it, and the
former drains the ready list by reentering _run_once. Fix this by
tracking the length of the list before pumping the event loop and then
pushing cancelled handles on to the list as necessary after pumping the
loop.
These changes also fix an issue with `export`ing awaitables.
Fixes#3038.
- Ensure that type assertions are guarded, and that incorrectly-typed
properties return errors rather than panicking
- Expand the asset/archive tests in the Node SDK to ensure that eventual
archives and assets serialize and deserialize correctly
Fixes#2836.
Fixes#3016.
These changes fix a bug in the Python runtime that would cause any
awaitable input properties passed to a resource that are missing
from the resource's output properties to be awaited twice. The fix is
straightforward: rather than roundtripping an input property through
serialize/deserialize, just deserialized the already-serialized input
property.
Fixes#2940.
These changes make the `pulumi.runtime.invoke` function invokable in a
synchronous manner. Because this function still needs to perform
asynchronous work under the covers--namely awaiting a provider URN and
ID if a provider instance is present in the `InvokeOptions`--this
requires some creativity. This creativity comes in the form of a helper
function, `_sync_await`, that performs a logical yield from the
currently running event, manually runs the event loop until the given
future completes, performs a logical resume back to the
currently executing event, and returns the result of the future.
The code in `_sync_await` is a bit scary, as it relies upon knowledge of
(and functions in) the internals of the `asyncio` package. The necessary
work performed in this function was derived from the implementations of
`task_step` (which pointed out the need to call `_{enter,leave}_task`)
and `BaseEventLoop.run_forever` (which illustrated how the event loop is
pumped). In addition to potential breaking changes to these internals,
the code may not work if a user has provided an alternative implementation
for `EventLoop`. That said, the code is a close enough copy of
`BaseEventLoop.run_forever` that it should be a reasonable solution.
Provides an additional helper function to read outputs from a stack reference in case it is known that the stack output must be present. This is similar to the design for config.get and config.require.
Fixes#2343.
This package's flags conflict with those in google/glog. Replace all
references to this package with references to
pulumi/pulumi/pkg/util/logging, and change that package to explicitly
call `flag.CommandLine.Parse` with an empty slice.
This should make it much easier to consume these packages in downstream
repos that have direct or indirect dependencies on google/glog.
These changes add support for passing `ignoreChanges` paths to resource
providers. This is intended to accommodate providers that perform diffs
between resource inputs and resource state (e.g. all Terraform-based
providers, the k8s provider when using API server dry-runs). These paths
are specified using the same syntax as the paths used in detailed diffs.
In addition to passing these paths to providers, the existing support
for `ignoreChanges` in inputs has been extended to accept paths rather
than top-level keys. It is an error to specify a path that is missing
one or more component in the old or new inputs.
Fixes#2936, #2663.
